m2 ssd pcie 3.0 in 4.0 slot
Joint Tactical Information Distribution System - Wikipedia
PCIe 4.0 SSDs can only match the speeds of a PCIe 4.0 slot, and PCIe 3.0 SSDs can't leap in data transfer rate and bandwidth to PCIe 4.0.
M.2 8x4 Silent Gen4 PCIe Card - SONNETTECH
PC-Hardware/The M.2 slot: What is it and how can I use it? ... On the other hand, a PCIe 3.0 SSD works fine in a PCIe 4.0 M.2 slot.
Will new RTX 3080ti cards require a PCIe 4.0 slot to work? - Video ...
Will a PCIe 2.0 work in a PCIe 3.0 slot? ... It'll surely be a bottleneck if you're using a PCIe 3.0 or 4.0 card in a PCIe 2.0 slot.